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KVM: Use kmalloc() instead of vmalloc() for KVM_[GS]ET_MSR 

We don't need more than a page, and vmalloc() is slower (much
slower recently due to a regression).

Signed-off-by: Avi Kivity <avi@redhat.com>
hifive-unleashed-5.1
Avi Kivity 2010-07-22 23:24:52 +03:00
parent 6aa0b9dec5
commit 7a73c0283d
1 changed files with 2 additions and 2 deletions
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4
arch/x86/kvm/x86.c
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@ -1562,7 +1562,7 @@ static int msr_io(struct kvm_vcpu *vcpu, struct kvm_msrs __user *user_msrs,
r = -ENOMEM;
size = sizeof(struct kvm_msr_entry) * msrs.nmsrs;
entries = vmalloc(size);
entries = kmalloc(size, GFP_KERNEL);
if (!entries)
goto out;
@ -1581,7 +1581,7 @@ static int msr_io(struct kvm_vcpu *vcpu, struct kvm_msrs __user *user_msrs,
r = n;
out_free:
vfree(entries);
kfree(entries);
out:
return r;
}